Wood grips are a very personal thing.
What works for my large hands may not work for someone with smaller hands.
Rubber is forgiving as it is not as solid as wood so it is "comfortable" with a wider segment of shooters.
If you have a shooting club near you or shooting buddies with various revolvers your best bet is to handle some in person to get the feel for what
you like. I have bought and sold many, Many grips over the decades before I settled in on my current preferences
I am VERY fond of the no longer manufactured Factory Combat grips on the round butt revolvers. There have been three or four variations on the design over the decades. The finger groove size and spacing fits by fat fingers very nicely and some of them have been very attractive. I often buy these when I come across them even if I do not have a current need for them. The prices are always going up. The last revolver is wearing smooth Factory presentation round butt grips, sometimes called banana grips because of their shape
On square butt revolvers I like both the Factory presentation grips and various Hogue offerings. On the Hogues I order them without finger grooves since Hogue's finger grooves do not fit my hands. I will often my Hogues with the white line spacer and contrasting butt cap
French Cake Walnut
made by Cullina
Hogue also makes some very comfortable round butt to square butt conversion grips. These are Tulipwood. I have some very nice Coco Bolo examples but can not find a photograph
As to resale value, I seldom care.
15-20-30 years down the road, the revolver will sell for more than I paid for it anyway so why sweat an extra hundred or so dollars. If it is an unusual grip that came with the revolver, I will put it in the box and save it for the future.